Subject

• Plans. Maps. 4
• Sketches. 4
• Copies. Derivative objects. 3
• Elevations. Orthographic projections. 3
• Working drawings. 3
• Marine charts. 2
• Surveys. Documents. 2
• Topographic surveys. 2
• Cross sections. 1
• Design drawings. 1
• Engravings. Prints. 1
• Holographs. Autographs. 1
• Lithographs. Planographic prints. 1
• Maps. Cartographic materials. 1
• Photographs. 1
• Plans (drawings). 1
• Sectional elevations. 1